o2_enrichment Namespace Reference

O2 enrichment calculations for fuel-fired furnaces.

Classes
struct	O2EnrichmentResults
	Results of the O2 enrichment calculation. More...

Functions
O2EnrichmentResults	calculateO2Enrichment (double o2_comb_air, double o2_comb_air_enriched, double flue_gas_temp, double flue_gas_temp_enriched, double o2_flue_gas, double o2_flue_gas_enriched, double comb_air_temp, double comb_air_temp_enriched, double fuel_consumption)
	Calculates the O2 enrichment results for a fuel-fired furnace.
double	calculateHeatInput (double flue_gas_temp)
	Calculates heat input from flue gas temperature.
double	calculateAirSpecificHeat (double comb_air_temp)
	Calculates air specific heat from combustion air temperature.
double	calculateAirCorrection (double air_specific_heat, double flue_gas_temp, double excess_air)
	Calculates air correction.
double	calculateCombustionAirCorrection (double air_specific_heat, double comb_air_temp, double excess_air)
	Calculates combustion air correction.
double	calculateStdAvailableHeat (double heat_input, double air_correction, double combustion_air_correction)
	Calculates standard available heat.
double	calculateAvailableHeat (double o2_comb_air, double flue_gas_temp, double available_heat)
	Calculates available heat.

Function Documentation

calculateAirCorrection()

double o2_enrichment::calculateAirCorrection	(	double	air_specific_heat,
		double	flue_gas_temp,
		double	excess_air
	)

Parameters

[in]	air_specific_heat	Air specific heat \([\unit{Btu/(lb\cdot\degreeFahrenheit)}]\)
[in]	flue_gas_temp	Flue gas temperature \([\unit{\degreeFahrenheit}]\)
[in]	excess_air	Excess air (fraction)

Returns

Air correction \([\unit{Btu}]\)

calculateAirSpecificHeat()

double o2_enrichment::calculateAirSpecificHeat

(

double

comb_air_temp

)

Parameters

[in]

comb_air_temp

Combustion air preheat temperature \([\unit{\degreeFahrenheit}]\)

Returns

Air specific heat \([\unit{Btu/(lb\cdot\degreeFahrenheit)}]\)

calculateAvailableHeat()

double o2_enrichment::calculateAvailableHeat	(	double	o2_comb_air,
		double	flue_gas_temp,
		double	available_heat
	)

Parameters

[in]	o2_comb_air	O2 in combustion air (fraction)
[in]	flue_gas_temp	Flue gas temperature \([\unit{\degreeFahrenheit}]\)
[in]	available_heat	Standard available heat (fraction)

Returns

Available heat (fraction)

calculateCombustionAirCorrection()

double o2_enrichment::calculateCombustionAirCorrection	(	double	air_specific_heat,
		double	comb_air_temp,
		double	excess_air
	)

Parameters

[in]	air_specific_heat	Air specific heat \([\unit{Btu/(lb\cdot\degreeFahrenheit)}]\)
[in]	comb_air_temp	Combustion air preheat temperature \([\unit{\degreeFahrenheit}]\)
[in]	excess_air	Excess air (fraction)

Returns

Combustion air correction \([\unit{Btu}]\)

calculateHeatInput()

double o2_enrichment::calculateHeatInput

(

double

flue_gas_temp

)

Parameters

[in]

flue_gas_temp

Flue gas temperature \([\unit{\degreeFahrenheit}]\)

Returns

Heat input \([\unit{\degreeFahrenheit}]\)

calculateO2Enrichment()

O2EnrichmentResults o2_enrichment::calculateO2Enrichment	(	double	o2_comb_air,
		double	o2_comb_air_enriched,
		double	flue_gas_temp,
		double	flue_gas_temp_enriched,
		double	o2_flue_gas,
		double	o2_flue_gas_enriched,
		double	comb_air_temp,
		double	comb_air_temp_enriched,
		double	fuel_consumption
	)

Uses process and enrichment parameters to estimate available heat, fuel consumption, and fuel savings.

Parameters

[in]	o2_comb_air	O2 in combustion air \([\unit{percent}]\)
[in]	o2_comb_air_enriched	O2 in enriched combustion air \([\unit{percent}]\)
[in]	flue_gas_temp	Flue gas temperature \([\unit{\degreeFahrenheit}]\)
[in]	flue_gas_temp_enriched	Flue gas temperature with O2 enrichment \([\unit{\degreeFahrenheit}]\)
[in]	o2_flue_gas	O2 in flue gas \([\unit{percent}]\)
[in]	o2_flue_gas_enriched	O2 in flue gas with O2 enrichment \([\unit{percent}]\)
[in]	comb_air_temp	Combustion air preheat temperature \([\unit{\degreeFahrenheit}]\)
[in]	comb_air_temp_enriched	Combustion air preheat temperature with O2 enrichment \([\unit{\degreeFahrenheit}]\)
[in]	fuel_consumption	Fuel consumption \([\unit{MMBtu/hr}]\)

Returns

O2EnrichmentResults struct with all calculated outputs.

calculateStdAvailableHeat()

double o2_enrichment::calculateStdAvailableHeat	(	double	heat_input,
		double	air_correction,
		double	combustion_air_correction
	)

Parameters

[in]	heat_input	Heat input \([\unit{\degreeFahrenheit}]\)
[in]	air_correction	Air correction \([\unit{Btu}]\)
[in]	combustion_air_correction	Combustion air correction \([\unit{Btu}]\)

Returns

Standard available heat (fraction)